(Table 2) Age determination of sediment cores LO09/21-2 and SO82_4-2

DOI

Five gravity cores taken from the Reykjanes Ridge have been used to establish a link between sediment physical properties and atmospheric records documented by d18O variations in Greenland ice cores over the last 45,000 calendar years. Marine Gamma Ray Attenuation Porosity Evaluator density and magnetic susceptibility variations could be linked with the ice core Dansgaard-Oeschger and Bond cycles. This is supported by ice-rafted detritus (IRD), grain size, the quartz/feldspar ratio, and carbonate, isotopic, and foraminiferal records. The covariation of the sediment physical properties and d18O in Greenland ice indicates a coupling of atmospheric temperature and paleocirculation variations. Gradual reduced bottom currents (Iceland-Scotland Overflow Water) and enhanced iceberg discharges have been reconstructed for cold atmospheric periods relative to interstadial times. In the study area the magnetic susceptibility signal is not related to the ice-rafted detritus input but most probably reflects the variations of the Iceland-Scotland Overflow Water intensity transporting titanomagnetite into the Reykjanes Ridge region.

Supplement to: Moros, Matthias; Endler, Rudolf; Lackschewitz, Klas Sven; Wallrabe-Adams, Hans-Joachim; Mienert, Jürgen; Lemke, Wolfram (1997): Physical properties of Reykjanes Ridge sediments and their linkage to high-resolution Greenland Ice Sheet Project 2 ice core data. Paleoceanography, 12(5), 687-695

Identifier
DOI https://doi.org/10.1594/PANGAEA.868816
Related Identifier https://doi.org/10.1029/97PA02030
Related Identifier https://doi.org/10.1017/S0033822200013886
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.868816
Provenance
Creator Moros, Matthias; Endler, Rudolf; Lackschewitz, Klas Sven; Wallrabe-Adams, Hans-Joachim ORCID logo; Mienert, Jürgen; Lemke, Wolfram
Publisher PANGAEA
Publication Year 1997
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Language English
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 84 data points
Discipline Earth System Research
Spatial Coverage (-30.753W, 58.942S, -30.479E, 59.096N)
Temporal Coverage Begin 1992-10-20T00:00:00Z
Temporal Coverage End 1993-09-11T00:00:00Z